民用建筑土体洞室勘察，勘探孔应()?

A.沿洞轴线布置

B.沿距洞壁外侧1~3米交错布置

C.沿洞壁任一侧面布置

D.沿洞壁外侧5米交错布置

_____ funny story! It makes us laugh again and again.[ ]

A. What an

B. What a

C. How

D. What